Improvement in caps for spinning-spindles



C. WEILER.

, CAPs Fon SPINNING sPINDLEs. N.185,807. Patented 1Jec.z6,1e'1es.l

H //////////////V/N um for Spinning-spindles,

UNITED S'lafras Param @Ferca CHARLES WEILER, OF LANDENBERG, ASSIGNOR TOJOHN LANDENBERGER AND GEORGE W. LANDENBERGER, 0F PHILADELPHIA,PENNSYLVANIA.

IMPROVEMENT IN CAPS FOR S'PlNNlNG-SPINDLES.

Specication forming part of Letters Patent No. 185,807,

dated December 26,1%76 application filed April 3, 187 6.

To all whom 4it may concern:

Beit known that I, CHARLES WEILER, of resents Landenhergf, Chestercounty, Pennsylvania, have invented certain Improvements in Caps ofwhich the following is a specification:

My invention relates to the manufacture of caps used in connection withstationary spindles, on which bobbins are caused to revolve inspinning-machines5 and my invention consists in making the caps ot'glass, so that they will present a smooth surface for the yarn to bearagainst, will not attract moisture so readily as a metal surface, andwill not require the constant cleansing which a cap ot' polished metaldemands. My invention further consists in providing the glass caps withmetal thimbles, in the manner described hereafter.

In the accompanying drawing, Figure l represents a spindle of the classto which my invention relates, 1n section.

A represents the spindle; B, the pulley for supporting the bobbin, and Dthe cap, which is made ot' glass instead ot'` metal, and which may be ofcylindrical form, as 'shown by plain .lines in Fig. l, or of a taperingform, as shown by dotted lines, the cap terminating in the usual roundedtop.

The cap is made in the same manner` as other articles oi' pressed glassare m ade-that is say, by the use of a mold of the desired eX- ternalshape ot' the cap, in conjunction with a plunger for imparting theproper conformation to the interior.

The hole in the top of the cap may be made by first boring and thengrinding the hole to the desired taper, or the hole may be made duringthe process of molding the glass, in

the cap ofthe spindle being` the manner shown in Fig. 2, in which I repaportion of the plunger, and J part of the mold, the plunger having acentral sliding rod, H, and the end ot the latter t'orniing, While theglass is in a plastic condition, the desired taper hole, which mustnecessarily be concentric with the cap.

Instead ot' forming the hole for the spindle directly in the glass, itmay be made in a thimble, K, secured to the glass during the process ot'molding, the same as shown in Fig. 3, the central position of theplunger in the mold being insured by a pin or plunger during theoperation ot' pressing the glass.

In Fig. 3 the thimble has a series ot' grooves for insuring itsretention in place; but I prefer to make the metal thimble in the mannershown in Fig. 4-that is, with a Iiange, concave on the under side, forresisting the blows on the spindle in adjusting' the cap to its place.The projections on the thimbles may be made ot' different forms,providing they are slidicient, when embedded in the glass, to retain thesaid tllimble in its place.

I claim as my inventionl. The glass cap, having an to the spindle, asset forth.

2. The combination ot' the spindle, the glass cap, and the thimbleembedded in the same, and adapted to the spindle, all substantially asset forth.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

oritice adapted CHARLES WEILER. Witnesses:

HARRY HowsoN, J r., HARRY SMITH.

